U.S. presidents with the highest grandiose narcisissism - No. 1: Lyndon Baines Johnson: Vice President Lyndon Johnson walks through downtown Fort Worth with President John F. Kennedy Nov. 22, 1963. Kennedy was assassinated later that day in Dallas. less

U.S. presidents with the highest grandiose narcisissism -No. 2: Theodore Roosevelt: In this undated file photo provided by Harvard University Press, President Theodore Roosevelt, posing as an "outdoorsman," points his rifle during a studio photo session. less

U.S. presidents with the highest grandiose narcisissism -No. 2: Theodore Roosevelt: In this undated file photo provided by Harvard University Press, President Theodore Roosevelt, posing as an ... more

U.S. presidents with the highest grandiose narcisissism -No. 3: Andrew Jackson: President's Levee, or All Creation Going to the White House, by Robert Cruikshank depicts the crowd in front of the White House during Andrew Jackson's first inaugural reception in 1829.

U.S. presidents with the highest grandiose narcisissism -No. 3: Andrew Jackson: President's Levee, or All Creation Going to the White House, by Robert Cruikshank depicts the crowd in front of the White

U.S. presidents with the highest grandiose narcisissism -No. 5: John F. Kennedy: In this October 1962 file photo provided by the White House, President John F. Kennedy, left, claps time as his children Caroline, center, and John, Jr. dance in the Oval Office. less

U.S. presidents with the highest grandiose narcisissism -No. 5: John F. Kennedy: In this October 1962 file photo provided by the White House, President John F. Kennedy, left, claps time as his children ... more

Photo: HOPD

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U.S. presidents with the highest grandiose narcisissism -No. 5: John F. Kennedy: In this Nov. 9, 1960 file photo, Caroline Kennedy gets a piggy-back ride from her father, John F. Kennedy, in Hyannis Port, Mass. less

U.S. presidents with the highest grandiose narcisissism -No. 5: John F. Kennedy: In this Nov. 9, 1960 file photo, Caroline Kennedy gets a piggy-back ride from her father, John F. Kennedy, in Hyannis Port, ... more

Photo: Anonymous, STF

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U.S. presidents with the highest grandiose narcisissism -No. 5: John F. Kennedy: President John F. Kennedy and his daughter, Caroline, sail off Hyannis Port, Mass., in 1962.

U.S. presidents with the highest grandiose narcisissism -No. 5: John F. Kennedy: President John F. Kennedy and his daughter, Caroline, sail off Hyannis Port, Mass., in 1962.

Photo: STF

Among U.S. presidents, LBJ tops charts in 'grandiose narcissism' study

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In a recent study of U.S. presidents' personality traits, Lyndon Johnson ranked highest in grandiose narcissism.

While it frequently gets a bad rap, grandiose narcissism may predict both positive and negative leadership behaviors, according to a group of researchers who published a paper in October in Psychological Science.

Grandiose narcissism, which is characterized by an extroverted, flamboyant style, is distinct from vulnerable narcissism, which is more associated with emotional sensitivity and vulnerability.

The paper, titled "The Double-Edged Sword of Grandiose Narcissism: Implications for Successful and Unsuccessful Leadership Among U.S. Presidents," looks at data on the 42 U.S. presidents from George Washington through George W. Bush.

The researchers included psychologists from Emory University and the University of Georgia as well as the authors of "Personality, Character, and Leadership in the White House," a 2005 book that presented scientific evaluation of U.S. presidents' personalities.

According to an abstract of the Psychological Science article, grandiose narcissism (but not vulnerable narcissim) in presidents was associated with superior overall greatness, public persuasiveness, crisis management, agenda setting and allied behaviors.

The trait was also linked to performance indicators like winning the popular vote and initiating legislation, the abstract stated.

On the down side, grandiose narcissism was associated with negative outcomes such as congressional resolutions to impeach the president and unethical behavior, according to the abstract.

Angela Watts, an Emory University graduate student and one of the paper's authors, told the website Futurity.org that the research supports the theory that there are bright and dark sides to grandiose narcissism.

"It's interesting to me that these are memorable presidents, ones that we tend to talk about and learn about in history classes," Watts told Futurity.org.

"Only rarely, however, do we talk about most of those who had low ratings for grandiose narcissism, like Zachary Taylor and Millard Fillmore," Watts said.